Balancing Chemical Equations

Front

Coefficient

Back

The large number in front of a chemical formula.

Front

What is the small number after an element in a chemical equation called? Example: H₂

Back

Subscript

Front

Determine the coefficients to make the following equation balanced? __N₂ + __O₂--> __NO
Options: 1, 1, 1; 1, 1, 2; 2, 2, 2; 1, 2, 2

Back

1, 1, 2

Front

How many HCl molecules are needed to balance the equation? Mg + __HCl ---> MgCl₂ + H₂

Back

2

Front

Determine the coefficients to balance the equation: __Al +__HCl --> __H₂ +__AlCl₃

Back

2,6,3,2

Front

What is the coefficient? 3H₂O

Back

3

Front

Determine the coefficients to balance the chemical equation: ___Al + ___O₂--> ___Al₂O₃

Back

4, 3, 2

Front

What is located to the right of the arrow in a chemical equation?

2H_{2 +} O₂ --> 2H₂O

Back

Products

Front

Is the following equation balanced?
4Fe + 3O₂ --> 2Fe₂O₃

Back

yes

Front

Balance the following equation: __Zn+__HCl -->__ZnCl₂ +__H₂

Back

1,2,1,1